/***
    Copyright (c) 2009 CommonsWare, LLC
    
    Licensed under the Apache License, Version 2.0 (the "License"); you may
    not use this file except in compliance with the License. You may obtain
    a copy of the License at
        http://www.apache.org/licenses/LICENSE-2.0
    Unless required by applicable law or agreed to in writing, software
    distributed under the License is distributed on an "AS IS" BASIS,
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    See the License for the specific language governing permissions and
    limitations under the License.
*/

package it.rainbowbreeze.libs.logic;

import android.app.IntentService;
import android.content.Context;
import android.content.Intent;
import android.os.PowerManager;

abstract public class WakefulIntentService extends IntentService {
    public WakefulIntentService(String name) {
        super(name);
    }

    abstract protected void doWakefulWork(Intent intent);
    
    private static final String LOCK_NAME_STATIC="com.commonsware.cwac.wakeful.WakefulIntentService";
    private static PowerManager.WakeLock lockStatic=null;
    
    synchronized private static PowerManager.WakeLock getLock(Context context) {
        if (lockStatic==null) {
            PowerManager mgr=(PowerManager)context.getSystemService(Context.POWER_SERVICE);
            
            lockStatic=mgr.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
                                                        LOCK_NAME_STATIC);
            lockStatic.setReferenceCounted(true);
        }
        
        return(lockStatic);
    }
    
    public static void sendWakefulWork(Context ctxt, Intent i) {
        getLock(ctxt).acquire();
        ctxt.startService(i);
    }
    
    public static void sendWakefulWork(Context ctxt, Class clsService) {
        sendWakefulWork(ctxt, new Intent(ctxt, clsService));
    }
    
    @Override
    final protected void onHandleIntent(Intent intent) {
        try {
            doWakefulWork(intent);
        }
        finally {
            getLock(this).release();
        }
    }
}
